Water Quality
Water Quality
Different uses of water may require a different level of “quality” of water; for example, water that contains dirt and grime might work fine for agricultural uses, but industrial uses and drinking water require a different level of water quality; or water that might be safe to use in industrial and agricultural uses may not be safe to drink or promote healthy ecosystems. The NYWSC collects water-quality data for all water resources and works with the public, government agencies, organizations, and the private sector to identify and understand environmental issues and concerns regarding the quality of water supplies in the Nation and abroad. Water-quality data are then used to determine the health of various ecosystems, including wetlands, urban landscapes, coastal environments, and watersheds. Effects of nutrient and micropollutant loading to watersheds and wetlands, habitat response to changes in infrastructure, wetlands restoration for the effects of treating urban wastewater, and toxicity in waters affected by urban runoff are some of the more recent projects undertaken by the NYWSC with State and local cooperators.
Filter Total Items: 102
Bathymetry of New York City’s East of Hudson Reservoirs
Background: The New York City Department of Environmental Protection (DEP) maintains an extensive network of reservoirs and aqueducts for water collection, storage, and transport; it supplies more than one billion gallons of drinking water daily to more than nine million people. The East of Hudson (EOH) network (fig. 1) includes thirteen reservoirs – Amawalk, Bog Brook, Boyd Corners, Cross River,
Harmful Algal Bloom monitoring in the Finger Lakes region, New York
Background: Harmful algal blooms (HABs) are increasingly a global concern because they pose a threat to human and aquatic ecosystem health and cause economic damages. Cyanobacterial HABs (CyanoHABs) represent a substantial threat to drinking-water supplies, aquatic ecosystem health, and safe recreational uses of freshwater resources in New York. Toxins produced by some species of cyanobacteria
Hydrogeologic and Geochemical Assessment of the Effects of Leakage from the Catskill and Delaware Aqueducts on the Local Bedrock and Overburden Aquifers in Southeastern New York
PROBLEM As part of an effort to sustain a viable water-supply system for 8 million residents in New York City, and 1 million other residents in upstate New York that rely on City water, the New York City Department of Environmental Protection (NYCDEP) has requested a multi-disciplinary study by the U.S. Geological Survey (USGS) to determine the source(s) of water to surface-water sites (springs
Hydrologic Monitoring in the Central Pine Barrens
The Long Island Central Pine Barrens (CPB) is a large, preserved region of pristine ecological habitat located in eastern parts of Suffolk County, Long Island, NY. The 106,500-acre CPB encompasses portions of the Towns of Brookhaven, Riverhead, and Southampton, and is a core part of the larger Long Island Pine Barrens Maritime Reserve (fig. 1). The CPB overlies portions of Long Island’s federally...
Long-term trends in Rainbow Trout growth and naturalized populations in the Ashokan Basin
Background: Rainbow Trout (Oncorhynchus mykiss) have thrived in the Esopus Creek since their introduction in the 1880s. The construction of the Ashokan Reservoir in 1915 changed the fishery by providing a stable lentic environment where adult trout could grow large and find refuge during periods when stream conditions become stressful. Although many adult Rainbow Trout spend time in the reservoir
Development of Long Island Water Quality Integrated Data System (LIQWIDS) - User interface and web services in support of collaboration under the Long Island Nitrogen Action Plan(LINAP)
PROBLEM There are more than 60 organizations and agencies collecting water-quality data on Long Island. The types of database management that are used to store and archive regulatory and non-regulatory data vary from paper forms to spreadsheets to State and Federal databases, and there is minimal communication between these systems. As a result, those interested in analyzing data may be unaware
Current Water Conditions in New York
• National Water Information System (NWIS): Find water-resources data collected at approximately 1.5 million sites, using menu-based and map-based front ends. • WaterWatch: View maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States.
Assessment of pathogen sources to Hook Pond, East Hampton, New York
Background In order to help identify sources of high Enterococci concentrations identified by the Village of East Hampton and the Surfrider Foundation’s water-quality sampling upstream of Hook Pond, surface water and groundwater samples will be collected and analyzed for F+-specific coliphage, bacteroides, Enterococci and fecal coliform, and nitrogen isotopes. Potential sources of pathogens incl
Assessment of the Water Quality of Hook Pond, East Hampton, New York
PROBLEM Hook Pond, an 83-acre freshwater pond in East Hampton, N.Y., has historically shown indications of impaired water quality. Impairments in this shallow pond include elevated nutrient concentrations and low dissolved oxygen concentrations in bottom waters as a result of current and historical land-use practices (Lombardo, 2015). Recent (2016) harmful algal blooms in Hook Pond and other east
305b Groundwater Quality Monitoring in New York
Relatively little data describing the quality of groundwater in New York State exists, yet groundwater is used as a source of drinking water by approximately one quarter of the population of the state. The objective of the 305(b) Ambient Groundwater Quality Monitoring project is to quantify and report on ambient groundwater quality from bedrock and glacial-drift aquifers in upstate New York. An...
Our Science
The New York Water Science Center conducts research and investigations used across a broad range of industries and other services.
Sentinel Monitoring of Groundwater for Contaminants of Emerging Concern to Provide Advanced Warning for Supply Wells on Long Island, New York
Problem The groundwater supply of Nassau and Suffolk Counties is prone to contamination from past and current land uses, including practices related to agriculture, industry, and residential development, because the soils and underlying sediments are generally composed of sandy, permeable materials that allow contaminants to move readily from the land surface into the groundwater below. Of incre